【摘要】 该文建立了半桥式逆变电源及其连接的配电网的完整的非线性的Matlab仿真模型。仿真试验分析了弧焊逆变电源工作过程及其动态特性 ,接于配电网的邻近用户的电压、电流及其THD(总谐波歧变率 ) ,弧焊逆变电源输入电压、电流的THD及频谱分析。给出了逆变电源焊接时熔滴短路过渡情况下逆变电源及其电网系统中典型电量动态过程的图形化表示更多还原

【Abstract】 Nonlinear Matlab simulation model of half-bridge inverter and it’s connected power distribution network was setup. The working process , dynamic character ,input voltage ,input current and their THD of welding inverter were analysed through simulation, so as to current ,voltage and their THD and spectrum of neighbor User . Dynamic response of representative electrical quantities when short circuit occurred caused by dropping of melded welding rod were shown in curves.更多还原